Rose plant Jacave

ABSTRACT

A floribunda rose variety having vigorous plant which is somewhat susceptible to rose powdery mildew, short bloom cycle in greenhouse conditions, lavender flowers having 30-35 petals, and strong fragrance.

This present invention relates to a new and distinct variety of roseplant of the floribunda class which was originated by me by crossing thevariety Heirloom, U.S. Plant Pat. No. 3,234, with the variety AngelFace, U.S. Plant Pat. No. 2,792.

The primary objective of this breeding was to produce a new rose varietyof a lavender color suitable for use as a greenhouse cut flower. Thisobjective was substantially achieved along with other desirableimprovements as evidenced by the following unique combination ofcharacteristics which are outstanding in the new variety and whichdistinguish it from its parents as well as from all other varieties ofwhich I am aware:

1. Short bloom cycle in greenhouse conditions.

2. Lavender color from bud to full open.

3. Strong fragrance.

4. Vigorous plant, somewhat susceptible to rose powdery mildew.

5. Petal count of 30 to 35 thick petals.

Asexual reproduction of this new variety by budding, as performed atWasco, Calif., shows that the foregoing characteristics and distinctionscome true to form and are established and transmitted through succeedingpropagations.

The accompanying illustration shows typical specimens of the vegetativegrowth and flowers of this new variety in different stages ofdevelopment, depicted in color as nearly true as it is reasonablypossible to make the same in a color illustration of this character.

The following is a detailed description of my new rose cultivar withcolor in terminology in accordance with The Royal Horticultural SocietyColour Chart except where ordinary dictionary significance of color isindicated.

Parentage:

Seed parent.--Heirloom, U.S. Plant Pat. No. 3,234.

Pollen parent.--Angel Face, U.S. Plant Pat. No. 2,792.

Classification:

Botanical.--Rosa hybrid.

Commercial.--Floribunda.

FLOWER

Observations made from specimens grown in a greenhouse at Irvine, Calif.in April.

Blooming habit: Recurrent, continuous.

Bud:

Size.--11/8" to 11/4" when petals start to unfurl.

Form.--Blunt top.

Color.--When sepals first divide, Red-Purple 59D. When half blown; upperside of petals ranging from Red Group 54A to 54D; lower side of petalsranging from Red Group 54A to 54D with darker areas of Red-Purple 57C.

Sepals.--Color: Outer surface Green 138B with few stipitate glands.Three appendaged sepals lightly appendaged. Two unappendaged sepalshairy edged.

Recpetacle.--Color: Green 138B. Shape: Funnel. Size: Large, broad.Surface: Smooth.

Peduncle.--Length: Medium. Surface: Nearly smooth. Color: Light green.Strength: Stiff, erect.

Opening.--Petals fold outward with little curling.

Bloom:

Size.--Small. Average open size: 2"-3".

Borne.--Singly and several together.

Stems.--Long, strong.

Form.--When first open, high center. Permanence: Flattens.

Petalage.--Number of petals under normal conditions: 30-35.

Color.--Center of flower: Upper side of petals Purple 75D; reverse sideof petals Purple 75D; base of petals Yellow-Green 154D at small area atpoint of attachment. General tonality from a distance Purple 75D.

Variegations.--Darker areas on outer petals where first exposed tosunlight.

Discoloration.--General tonality at end of first day: No change. Thirdday: Purple 75D.

Fragrance.--Strong.

Petals:

Texture.--Thick.

Shape.--Nearly round.

Form.--Tips slightly recurved.

Arrangement.--Imbricated. Petaolids in center, few.

Persistence.--Drop off cleanly.

Lastingness.--On the plant, long. As cut flower, long.

Reproductive parts:

Anthers.--Large, many. Color: Yellow. Arrangement: Regular aroundstyles.

Filaments.--Color: Yellow.

Pollen.--Lemon yellow.

Styles.--Color: Pink.

Stigmas.--Color: White.

PLANT

Form: Bush.

Growth: Very vigorous, upright, Bloom cycle is 36 to 40 days in wintermonths in normal greenhouse conditions at Irvine, Calif.

Foliage: Number of leaflets on normal mid-stem leaves: 5-7.

Size.--Large.

Quantity.--Normal.

Color.--New foliage: Near Greyed Purple 187B. Old foliage: Medium green.

Leaflets:

Shape.--Oval pointed.

Texture.--Upper side: Leathery.

Edge.--Serrated.

Serration.--Single, small.

Petiole.--Rachis: Color: Green. Underside: Few prickles.

Stipules.--Long, bearded.

Disease resistance.--Susceptible to mildew under adverse growingconditions at Irvine, Calif.

Wood:

New wood.--Color: Reddish. Bark: Smooth.

Old wood.--Color: Green. Bark: Smooth.

Prickles:

Quantity.--On main stalks from base, few. On laterals from stalk, few.

Form.--Long, straight.

Color when young.--Red.

Position.--Irregular.

Small prickles:

Quantity.--On main stalks, none. On laterals, none.

I claim:
 1. A new and distinct variety of rose plant of the floribundaclass, substantially as herein shown and described, characterizedparticularly as to novelty by the unique combination of its vigorousplant producing fragrant, lavender flowers suitable for culture ingreenhouse conditions for production of cut flowers.